Gib for elevator guide shoes



Dec. 28, 1937. H. F. MASON 613 FOR ELEVATOR ,GUIDE SHOES Filed June'10, 1936 ME yrae, wry 9'20 Patented Dec. 2 8, 1937 UNITED STATES PATENT oFFi 2 Claims.

My invention relates generally to guiding means for elevators, and more particularly to a gib for guiding shoes that are mounted on an elevator and which engage the guiding rails that extend lengthwise within the elevator hatchw'ay generally to the sides and rear of the car.

The principal objects of my invention are, to provide a relatively simple, practical and highly efficient guide shoe having a rail engaging gib that is formed of hard wood, preferably iron wood, and to combine with said gib cushioning means that is effective in counteracting and eliminating vibration that would otherwise result during the travel of the elevator car between its vertical guides and my improved construction also being practically noiseless while in operation.

A further object of my invention is, to provide a gib and cushion for elevator guide shoes that may be easily and quickly placed in or removed from the shoe or gib housing, thus greatly facilitating assembly, inspection and replacements.

A further object of my invention is, to construct the rail engaging gib from material such as iron 7 wood which is the ideal material to be used for the intended purpose, by reason of the fact that guide shoe gibs formed of this material do not require any lubrication in the performance of their intended functions.

With the foregoing and other objects in View my invention consists in certain novel features of construction and arrangements of parts that will be hereinafter more fully described and claimed and illustrated in the accompanying drawing in which:

Fig. 1 is a top plan view of a guide shoe stand and showing the shoe in engagement with an elevator guide rail that extends vertically through the hatchway.

Fig. 2 is a side elevational view of, an elevator guide, and showing the shoe that carries the gib in vertical section.

Fig. 3 is an enlarged horizontal section taken on the line 33 of Fig. 2.

Fig. 4 is a perspective view of the iron wood gib.

Fig. 5 is a perspective view of the cushion that is utilized in connection with the gib.

Referring by numerals to the accompanying drawing which illustrates a preferred embodiment of my invention, I0 designates a conventional guide shoe stand which is secured to and carried by the elevator car, said stand including a horizontally disposed tubular bearing. I I, in which is arranged for horizontal sliding movement, a conventional spring pressed shaft I2 carrying on its forward end a vertically disposed shoe I3, which is channel shaped in horizontal section.

Removably positioned on the ends of the shoe l3 are caps or plates I4, and formed in each plate is notch I5 for the accommodation of the conventional elevator guiding rail Iii that extends vertically through the hatchway.

Positioned within the shoe I3, and retained therein by the removable plates It is a gib I'I that is channel shaped in horizontal section, and said gibbeing formed of iron Wood and preferably that particular species of iron wood that is com mercially known as desert iron wood.

The channel that is formed in this gib, re ceives the outer portion of the flange it of guide 15 rail i6, and positioned Within the shoe I3 behind and to the sides of the gib is a cushion IQ of elastic material, preferably rubber.

The elasticity of this cushioning member I 9 maintains the gib in close contact with the guiding rail, and as said cushionv is formed of elastic material, it absorbs and nullifies any vibration I that might otherwise occur between the shoe and rail during the operation of the elevator and likewise said cushioning member renders the sliding movement of the gib on the guiding rail, noiseless.

It will be understood that at all times the conventional spring that is associated with the shaft I2 that carries shoe it, maintains the gib in close contact with the elevator guide rail, thus the gib has bearing with three faces of the guiding rail, and as a result, the movementfof the elevator is rendered smooth, vib-rationless and practically noiseless. 5

One ofthe characteristics of iron wood and particularly that variety known as desert iron wood is that is requires no lubrication whatever to facilitate its frictional or rubbing contact with metal and particularly with steel, of which elevator guiding rails are generally formed. The plates I4 are detachably secured to the ends of shoe I3, in order that the gib and cushion may be easily and quickly positioned within or'removed from the shoe, thereby facilitating assembly, inspection and replacements.

Thus it will be seen that I have provided an elevator guide shoe gib that is relatively simple in construction, inexpensive of manufacture and very effective in performing the functions for which it is intended.

It will be understood that minor changes in the size, form and construction of the various parts of my improved elevator guide shoe gib may be made and substituted for those herein 55 shown and described without departing from the spirit of my invention, the scope of which is set forth in the appended claims.

I claim as my invention:

1. The combination with an elevator guide shoe, of a gib removably positioned in said shoe, said gib being formed in a single piece from iron wood, and channel shape in cross-section and a one piece channel-shape cushion arranged between 10 said gib and said shoe.

2. The combination with an elevator guide shoe which is channel shaped in horizontal section, of a guide rail engaging gib removably positioned in said shoe, said gib being formed in a single piece from iron wood, and channel shaped in crosssection and a one-piece channel shaped body of elastic material positioned between said gib and said shoe. 

